Machine for drying yarns



(No Model.) 4 Sheets-Sheet 1.

HSTETSON. 4 MACHINE FOR DRYING YARNS, FABRICS, 8w.

\ No. 444,860. Patented Jan. 20, 1891.

.4 754M644 9 V 4 d Jr (No Model.) 4 Sheets-Sheet 2.

HSTETSON. MACHINE FOR DRYING YARNS, FABRICS, Gas. No. 444,860. PatentedJan. 20, 1891.

I lnvenzar (No Model.) 4 shets-she c '3.

B. STE'TSON. MACHINE FOR DRYING YARNS, FABRICS, '&c.

No. 444,860. Patented Jan. 20, 1891.

fNoModel.) 4 Sheets Sheet 4. B. STETSON. MACHINE FOR DRYING YARNS,FABRICS, &c. No. 444,860. Patented Jan. 20, 1891.

Fig. 6.

g Ka V 7f Mei 2am. 4 -11 m fwaq zi iewa a W UNTTED STATES PATENT @rrion.

BRADFORD STETSON, OF UXBRIDGE, MASSACHUSETTS.

MACHINE FOR DRYING YARNS, FABRlCS, 86C- SPEGIFICATION forming part ofLetters Patent No. 444,860, dated January 20, 1891.

Application filed November 18, 1889. Serial No. 330,163. (No model.)

To all whom it may concern.-

Be it known that 1, BRADFORD STETSON, a citizen of the United States,residing at Uxbridge, in the county of Worcester and State ofMassachusetts, have invented certain new and useful Improvements inMachines for Drying Yarns, Fabrics, the; and I do declare the followingto be a full, clear, and exact description of the invention, such aswill enable others skilled in the art to which it appertains to make anduse the same, reference being had to the accompanying drawings, and tothe letters and figures of reference marked thereon, which form a partof this specification.

Figure l is a side elevation of my machine; Fig.2, avertical andlongitudinal section thereof. Fig. 3 is afront end elevation thereof;Fig. 4:, a vertical and transverse section on line 1 1 of Fig. 2, asseen when looking in the direction indicated by arrow 10; and Fig. 5 isa vertical and transverse section on line 2 2 of said Fig. 2, as seenwhen looking in the direction indicated by arrow 20. Fig. 6 is ahorizontal section on line 3 3 of Fig. 2 of the drying-chamber, showingin top View the deflectors, and where portions of the latter are shownas broken away the separators are also shown in top view. Fig. 7 is aView, partly in section and partly in elevation, of a pair of thebearings used to support the shafts and rolls in said machine. Fig. 8 isa side view of one of said bearings. Fig. 9 is a median section ofportions of the socket and journal of the fork of one of said bearings.

The nature of my invention is defined in the claims hereinafterpresented.

The machine hereinafter described, and represented in the drawings, isintended specially for the drying of yarns in chains, or fabrics whichdo not require tentering.

In the drawings, the frame of the machine is shown at A, it being ofsuitable construction to support the main operative parts.

B is a driving-shaft from a pulley C, fixed to which power is conveyedby a belt D to a pulley E, fixed to the main shaftF of the machine, saidshaft supported in bearings a a, secured to the frame, and is providedwith a loose pulley G, as shown. (See Fig. A spur-pinion H, fixed to theshaft F, engages with a gear I, fixed to the shaft K of the lower of twodraw or nip rolls L M, supported as shown, the upper nip-roll M havingarms N, which are pivoted to the frame and at their free ends providedwith weights 0, so arranged with its bearings as to create pressure ofsaid upper roll against the lower roll L. To the other end of the shaftK of the said lower roll L is secured a pulley P, about which and apulley Q a belt R runs. The said pulley Q is fixed to one end of a shaftS, provided with a pulley T at its middle and also a pulley U at itsopposite end, which connects by a belt 6 to a pulley V, fixed to one endof the shaft of the lower of two pressure ornip rolls X, supported inbrackets Y, fixed to the frame. Arms Z, pivoted to the brackets andprovided with weights A, bear on the bearings of the upper roll X andforce it against the roll W. Pivoted on the journals of the said roll XVare arms B B, to the lower ends of which a roll D is pivoted, andbearing on said roll is another roll 0, whosejournals are arranged inslots 79 in the arms B.

Jointed to the arms B at c are the outer ends of connecting-rods E,pivoted at their inner ends at d to cranks F, fixed to a shaft G,provided at its middle with a pulley H, connected by a belt I to thepulley T on the shaft S, hereinbefore referred to. The said arms B whenthe machine is in operation are swung back and forth on their pivot bythe connectingrods E and cranks F, and operate to fold the yarns, asshown in Fig. 2.

To the front of the frame A a guide-roll L is applied, and within thesaid frame are other nip and guide rolls M N, in front of which areguides O for the yarns.

Engaging with the gear I is a gear P supported on a bearing extendedfrom the frame of the machine, and fixed to said gear so as to revolvetherewith is a sprocket-wheel Q, which is connected by a chain belt R toa series of sprocket=WheelsS, fixed on thejournals of rollers T,arranged within the dryingchamber U of the machine. and X are arrangedin the upper part of drying-chamber and a series of rollers Y in thelower part of it, as shown in Fig. 2. Other sprocket-wheels f and g (seeFig. 1) are arranged with the belt R, as shown, to sup- Rollers V, W,

port it and keep it in engagement with the wheels S.

Between the two series of rollers T and Y are arranged two series Z andA of bars, the

5 said bars in each series being parallel to each other and extendinglengthwise in a direction at right angles to the axes of the saidrollers. These bars I term separators. Furthermore, a series ofdeflectors B are placed between the bars Z and rollers T, and anotherseries of deflectors C are arranged a short distance above the bars A(see Figs. 2 and 5,) said deflectors being disposed lengthwise in linewith the axes of the said rollers. Each 1 5 deflector is composed of twoslats h and 'i, transversely inclined to each other, as shown, a space70 being arranged between their top edges for the heated air in thechamber U to flow through in its passage upward through the yarns,whichalso move through said spaces It in their passage through thedrying-chant ber. The air on striking the inclined under surfaces of theslats h and t' will pass in crosscurrents against and through the yarns,this causing the air to do its work quickly and effectively. Otherspaces 70 are arranged between the botto n edges of the slats h 2 whichare directly under the rollers T, or are directly over the rollers Y,for the air to circulate through.

A partition Z extends across the dryingchambcr, as shown, between whichand the rear wall on of the machine is arranged a heater D the space n,between said partition 5 and wall, communicating near its bottom at owith the lower part of the drying-chamber U, a blower E being arrangedtherein, as shown, to force the heated air from the said space at intothe chamber U and against a 0 condenser F supported therein over atrough 19. (See Fig. 2.) The condenser is composed of a series of pipescommunicating with each other, which are kept cool bya constant flow ofcool water through them, and the moisture 5 in the air as it comes incontact with the condenser will gather on the pipes, and theair onleaving the condenser will pass in a thoroughly drystate against theyarns. The journals of the shafts and rollers, except the nip-rolls M Nand V X and the rolls 0 D, are represented as supported in bearings Gconstructed to swivel in vertical and horizontal planes, the boxes q, inwhich the said journals revolve, being sustained on pivots r r, screwedthrough the ends of the prongs of a fork .9, said fork being providedwith a journal If, supported in a socket it, having flanges o, slottedto receive screws to for confining it to the frame or to a bar fixed tothe frame of the machine. The object of making the aforesaid bearings Gas described is to avoid friction resulting from springing of the shaftsor warping of the rolls applied to said shafts, as in some cases woodenrolls are used, and were it not for the swivel-bearings for the shaftsmuch grinding and wear to the journals and boxes would be the result.Said bearings G also permit of such adjustment; as to admit of thecontinued use in the ma-- chine of a spring-shaft or a shaft with aspring-journal, and does away with the necessity of removing said shaftfrom its bearings to straighten it, which operation is a difficult oneto do and often results in breakage of the shaft. IVhen the saidbearings are used to support shafts which when in operation will besubjected to an upward draft, as will the rolls Y, (see Figs. 1 and 2,)or when said bearin gs are inverted, as they are shown in Fig. 1, tosustain the wheels f and g g g, I connect the fork s to its socket u byabolt m, extended through the bar or the portion of the frame to whichthe socket a is fixed and screwed into the end of the journal 2, asshown in Fig. 7; or I connect the fork to the socket, as shown in Fig.9, in which the flange n is shown as chambered to form a shoulder 'v, awasher 1; being arranged in the chamber and against said shoulder, thebolt 4e passing loosely through the washer and being screwed into thejournal '6. In either case the fork will be prevented from being-drawnout of its socket, but allowed to turn on its axis.

To the rollers or shafts in the machine, which will be subjected to noupward draft, no screw 00 is used to connect the fork s to its socket'lt. This permitsof the readyremoval of the said rollers or shafts fromtheir bearings when occasion requires by lifting the journals t of thesaid forks 8 out of the sockets u.

The drawings represent the machine as adapted for drying two chains Oand? of yarns simultaneously,said chains each being led over theguide-roll L, (see Fig. 2,) next between guides O. and partially aroundand between the tension or nip rolls M N and through the inlets 1 y inthe front .2 into the drying-chamber U, they next passing partiallyabout the roll V therein, then upward between the separators 1 and 2 ofthe upper series Z, (see Figs. 2 and 5,) next over the rolls IV and X inthe upper part of the chamber U, next downward through a deflector ofthe upper series 13 (see Fig. 2,) next be tween the separators l and 2,before 1nentioned, also througha deflector of the lower series C andbetween separators 1 and 2' of the lower series A next under the roll Ynearest the partition Z, and upward between the same separators ineachseries, as before, but through different deflectors in each series,and over the roll T nearest the said partition Z, and again downward, asindicated, this downward and upward course of the chains under the rollsY and over therolls T being repeated, as shown, said chains passing between separate deflectors in each series B and 0 each time they ascendand each time they descend, but are led between the same separators ineach series Z and A untilafter they pass under the roll Y, located nextto the front Z, and upward between the separators 1 and 2. Then they areled between the separators 2 and 3 of the upper series Z, (see Fig.5,)and next again upward over the rolls W and X and downward between thesame deflectors, as before, but between the said separators 2 and 3 inthe upper series Z and the separators 2 and 3 in the lower series A andafter passing the second time under the roll Y nearest the front Z andup between the said separators 2 and 3, they are next led between theseparators 3 and 4 of the upper series Z, and again over the rolls W andX, and so on, each chain being represented as passing; through themachine and about the rolls W, X, Y, and T seven times, and finallybeing led out of the drying-chamber 'U through the outlets a a, (seeFigs. 2, 3, and 5,) from which they pass under and partially about theroller L and between it and the roller M, and from thence are led upwardbetween guides b to spread the chains farther apart, (see Fig. 3,)thence over theroll X and between it and the roll W and downward betweenthe rolls 0 and I) and farther downward into separate tubs, in whichthey are laid in folds by the folding mechanism, operated as hereinbefore described, one of said tubs being shown at c in Fig. 2.

From the foregoing it will be seen that by arranging the chains of yarns0n the rollers within the closed dryingchamberU, motion being impartedto the said chains by the rolls T and the intervening mechanismconnecting them to the main shaft, as represented, and the air withinsaid chamber, which is maintained at a high temperature, being impelledby the blower against the deflectors disposed with relation to theascending and descending portions of said chains, as shown anddescribed, the heated airimpinging upon said deflectors will be causedto pass against and through the yarns in currents moving in oppositedirections and crossing each other, which will greatly facilitate thedrying of the yarns.

Yarns dried as hercinbefore explained are not liable to injury, as theyare when dried through contact with the surfaces of heated rolls asheretofore.

\Vhat therefore I claim is- 1. The drying-machine, substantially asdescribed, it consisting of the main shaft F, the pinion H, fixedthereto, the gear I, engaging the said pinion, the nip-rolls L M, theformer fixed to the shaft of the gear I, the gear P, engaging the saidgear I, the sprocket-wheel Q, fixed to the gear P, the chain belt R,sprocket-wheels S, series of rolls T, to the shafts of which thesprocket-wheels S are fixed, the series of rolls Y, rolls V, WV, and X,the adjustable bearings supporting the shafts and rolls, the closeddrying-chamber U, having the partition land the inlets y and outlets a,the deflectors and separators arranged in said chamber, as shown, incombination with the heater D the blower E and the condenser F allarranged and to operate essentially as set forth.

2. In a drying-machine, the combination of the series of rolls T and Y,the series of deflectors B and O and the drying-chamber, said deflectorsbeing arranged with relation to the said rolls, as represented, theheated air impinging the deflectors being caused to pass incross-currents against and through the chains of yarns as they movethrough the narrow space between said deflectors, as ex plained.

3. In a drying-machine, one or more series of deflectors and one or moreseries of separators, in combination with the drying-chamber and theseveral series of rolls for supporting in the drying-chamber one or morechains of yarns, said deflectors and separators being arranged in thedrying-chamber and with relation to the rolls essentially as set forthand represented.

41:. In a drying-machine, the combination, with the main shaft F, thepinion H, the gear I, and nip-rolls L M, of the pulley P, fixed to theshaft of the roll L, the shaft S, provided with the pulleys Q T U, theshaft G, having the pulley H, the bands R and I, the niprolls \V and X,the band e, connecting the shaft S and roll the folder-arms B, pivotedon the journals of the roll NY, and the rolls 0 D, supported by saidarms, the connecting-rods E, joining said arms B and the cranks F, thesaid cranks fixed to the shaft G, all being supported and arranged asshown, and operating to fold the yarns as they are drawn from thedrying-chamber, as explained.

5. The drying-machine, substantially as described, it consisting of themain shaft F, the pinion H, fixed thereto, the gear I, engaging the saidpinion, the nip-rolls L M, the former fixed to the shaft of the gear I,the gear P, engaging the said gear I, the sprocket-Wheel Q, fixed to thegear P, the chain belt R, sprocket-wheels S, series of rolls T, to theshafts of which the-sprocket-wheels S are fixed, the series of rolls Y,the rolls V, W, and X, the adjustable bearings supporting the shafts androlls, the closed drying-chamber U, having the partition Z, and theinlets y and outlets a, the deflectors, and separators arranged in saidchamber, as represented, in combination with a heater D and a blower Eall arranged and to operate substantially as explained.

G. In combination with the journals of the rolls and shafts of adrying-machine, the adjustable bearing G consisting of the slottedflange t, the socket u, projecting therefrom, the fork s, pivoted insaid socket, the pivots r r in the prongs of said fork, the box q,sustained by said pivots and adapted to swing in a plane at right anglesto the axis of said fork, and the screw 00, connecting the fork to thesocket, the shoulder o, and washer 21 as and for the. purpose explained.

7. The adjustable bearing G substantially as described, consisting ofthe slotted and chambered flange o, the socket u, projecting IIOtherefrom, the fork 3, supported in and adapt- In testimony whereof Iaffix my signature in ed to turn in said socket, the adjustablepivpresence of two Witnesses.

ots 0" r in the prongs of said fork, the box q,

sustained by said pivots and adapted to swing BRAD FORD STETSON inplanes at right angles to the axis of the fork, the screw 01:,connecting the fork to the Vitne'sses:

socket, and the Washe 0 as and for the pur- S. N. PIPER,

pose explained. STEPHEN W. I-IARMoN.

